scoreboard players remove #SYSTEM GameTimer_tick 1
execute if score #SYSTEM GameTimer_tick matches 0 run scoreboard players remove #SYSTEM GameTimer_ss 1
execute if score #SYSTEM GameTimer_tick matches 0 run scoreboard players set #SYSTEM GameTimer_tick 20
execute if score #SYSTEM GameTimer_ss matches 0 run scoreboard players remove #SYSTEM GameTimer_mm 1
execute if score #SYSTEM GameTimer_ss matches 0 run scoreboard players set #SYSTEM GameTimer_ss 59
execute if score #SYSTEM GameTimer_mm matches 0 if score #SYSTEM GameTimer_ss matches 1..2 run scoreboard players set #SYSTEM GameTimer 0